2,4'‐Bithiazole and Bis(2,4'‐bithiazole)bis(dimethyl sulfoxide)copper(II) Diperchlorate

The synthesis and crystal structure of 2,4'-bithiazole, C 6 H 4 N 2 S 2 (I), and its copper complex [Cu(C 6 H 4 N 2 S 2 ) 2 (C 2 H 6 OS) 2 ](ClO 4 ) 2 (II) are presented. The bithiazole molecules are planar in both compounds. The 2,4'-bithiazole (I) molecule is located on a symmetry center and the structure was solved by the introduction of disorder between the S atom and its neighbour S/C2, which caused a small deviation in the S-C and C-C bond distances. Other bond distances and angles are as expected. In the copper complex (II), the Cu atom is hexacoordinated and the 2,4'-bithiazole moiety again presents statistical disorder giving the ligand a local mirror symmetry